Samsung Galaxy S6 Sprint is now up!

I have a question about the lease deal. Since sprint changed my upgrade date from May to September, and my M7 is in pretty bad shape, I was looking to take advantage of the s6 offer.

Sprint says I'm eligible for a lease, but when I tried to upgrade it said my monthly charge would just be $25. If I go thorough with that would they go ahead and change me to that $80 plan or am I paying an extra $25 on top of my current bill?